i'm almost certain you're allowed to mix it with juice. i chase it with juice.
i mix it with a little bit of water, plug my nose, and throw it back.... then i immediately chase it with some juice, actually i like to take a sip of kombucha as the fizziness really gets rid of all the gross tastes (if i dont have kombucha, ill use a little bit of agave on a spoon)
the first couple days i didnt know if i would be able to handle the tincture 3 times a day because it was so gross, but i'm getting used to it now.. this morning it didn't really bother me.